Cruising down the highway your car is traveling at a set speed not needing the full use of all of its engine power, but eating up precious fuel nevertheless. That V6 or V8 under the hood could be much more efficient if it employed one important piece of modern day technology: cylinder deactivation. Does your vehicle have this feature? If so, exactly what does it do and is it a good thing? Read on to learn what some automakers are doing to conserve fuel without making significant changes to your vehicle.

Elevated fuel prices have consumers scrambling for answers. Some are switching to hybrids, others to diesel, while still others are choosing smaller and lighter vehicles all in a bid to save on fuel. While no one quite knows what the long term fuel prices will be, automotive manufacturers are able to squeeze out better fuel mileage through a rather simple technological change: cylinder deactivation. Cylinder deactivation works this way: let